glass moulded to the nearly final shape,ready for the process that grinding and polishing .precise form with good outershape.

Semi-finished optical blank for lens :

Glass moulded to nearly the final shape ,ready for processess that will grind and polish it to final , precise form ,with good outer shape , stable chemical and physical characteristics.  We can do reheat pressing as your drawings .

Specification :

R305  DIA.254mm  Thickness 37.7mm

R180  DIA.200mm  Thickness 38.3mm

R70.4 DIA 88.9mm  Thickness 22mm